HARD TO MEASURE. “Nuclear antimatter production in CR collisions and/or from DM sources is extremely suppressed for nuclear species above anti-3He. Efforts to search for nuclear antimatter in CR have been developed during the last 15 years: no observation of anti-4He or heavier antinuclei in the CR flux has been published down to the level of 10(−7).” (CR = cosmic ray; DM = dark matter).
https://link.springer.com/content/pdf/10.1007/s10686-021-09708-w.pdf
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022